329609317 has 2 divisors, whose sum is σ = 329609318. Its totient is φ = 329609316.

The previous prime is 329609303. The next prime is 329609353. The reversal of 329609317 is 713906923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328660641 + 948676 = 18129^2 + 974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329609317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 329609317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329609377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164804658 + 164804659.

It is an arithmetic number, because the mean of its divisors is an integer number (164804659).

Almost surely, 2^329609317 is an apocalyptic number.

It is an amenable number.

329609317 is a deficient number, since it is larger than the sum of its proper divisors (1).

329609317 is an equidigital number, since it uses as much as digits as its factorization.

329609317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 329609317 is about 18155.1457443888. The cubic root of 329609317 is about 690.7695097694.

The spelling of 329609317 in words is "three hundred twenty-nine million, six hundred nine thousand, three hundred seventeen".